Server 2008/Win 7 slow network access

Have a Virtualised Domain Controller and File Server on Win Server 2008 R2 and 2 HP ProBook's with Windows 7 64-bit Pro and the network access from the Win7 client to the WinServ08 is very slow.

Takes a long time to access any files whether reading or writing seems like its been scanned every time. I disabled NOD32 and the speed significantly improved - however, this is a mixed environment with XP, Vista and Win7 and this only affects the 2 Win7 laptops.

Am I missing something here as I do not wish to disable scanning of local files/folders?

Restore default settings in your NOD32 (if this is not possible/desired , restore only the real-time file system protection settings to their default ones) . This can be done when you open the GUI of NOD32 , press F5 from keyboard to open the Advanced setup tree , click "Real-time file system protection" and press the Default button .
Confirm the changes with OK button.

Thanks for the quick reply. I had followed that on the server however it did not help with speeding things up for Windows 7 Clients.

I have to disable "File Open" in #2 to speed things up and not sure of the implications of disabling this option on the server side.

I did try disabling the network settings on the client as you advised, however this had no affect with improving speeds with the server configurations as outlined in the KB.

I reverted all client settings to default with the server config remaining the same and the speed was still fast - so what I can gather is that the NOD32 on the server is causing the scanning to occur, however I guess that the client will scan all files.